Overview
Influenza (flu) is an infection in the lungs and breathing passages. It is caused by the influenza virus. There are different strains, or types, of the flu virus from year to year. Unlike the common cold, the flu comes on suddenly and the symptoms can be more severe. These symptoms include a cough, congestion, fever, chills, fatigue, aches, and pains. These symptoms may last for a few weeks. Although the flu can make you feel very sick, it usually doesn't cause serious health problems.
Home treatment is usually all you need for flu symptoms. But your doctor may prescribe antiviral medicine to prevent other health problems, such as pneumonia, from developing. The risk of other health problems from the flu is highest for young children (under 5), older adults (over 65), pregnant women, people with long-term health conditions, people who live in nursing homes or long-term care centres, and indigenous peoples.
Follow-up care is a key part of your treatment and safety. Be sure to make and go to all appointments, and call your doctor or nurse advice line (811 in most provinces and territories) if you are having problems. It's also a good idea to know your test results and keep a list of the medicines you take.
Where can you learn more?
Go to https://www.healthwise.net/patientEd
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